Bug 2507162 (CVE-2026-64306) - CVE-2026-64306 kernel: crypto: drbg - Fix returning success on failure in CTR_DRBG
Summary: CVE-2026-64306 kernel: crypto: drbg - Fix returning success on failure in CTR...
Keywords:
Status: NEW
Alias: CVE-2026-64306
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-25 10:08 UTC by OSIDB Bzimport
Modified: 2026-07-29 13:37 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-07-25 10:08:20 UTC 
In the Linux kernel, the following vulnerability has been resolved:

crypto: drbg - Fix returning success on failure in CTR_DRBG

drbg_ctr_generate() sometimes returns success when it fails, leaving the
output buffer uninitialized.  Fix it.
Comment 1 TEJ RATHI 2026-07-29 13:33:24 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026072508-CVE-2026-64306-62d1@gregkh/T
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